Error on databindings in Visual Studio

[RMorgan]

Attempting to databind any property of any control on any form in the
entire solution in the designer and I recieve a messagebox error,
"Object reference not set to an instance of an object." My only option
is to click OK. Design-time databinding used to work just fine in my
environment. Not sure what changed and when, but I'm totally stuck.
Help!

[Thomas]

Hi,
I had the same problem. There must be something wrong with the
project-datasources.
I deleted all Datasources from my Project-Properties-DataSources (I had
only few) and the Designer works.
Check the generated xml-files
(Project\Properties\DataSources\xy.datasource) or make a backup before
delete and put them back step by step.

Attempting to databind any property of any control on any form in the
entire solution in the designer and I recieve a messagebox error,
"Object reference not set to an instance of an object." My only option
is to click OK. Design-time databinding used to work just fine in my
environment. Not sure what changed and when, but I'm totally stuck.
Help!